Watchmaker&#39;s jeweling-tool.



Z RIDDLE.

WATCHMAKERS JEWELING TOOL.

APPLICATION FILED APR.26, 1915. RENEWED JAN. 23, 1911.

Patented June 12, 1917.

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STATES WATCHMAKERS JEWELING-TOOL.

Application filed April 26, 1915, Serial No. 24,044. Renewed January 23, 1917.

To all whom it may concern:

Be it known that I, ZALA RIDDLE, a citizen of the United States, residing at Dunsmuir, in the county of Siskiyou and State of California, have invented new and useful Improvements in VVatchmakers Jeweling-Tools, of which the following is a specification.

This invention is an improved watchmakers jeweling tool, by means of which the seat in the jewel setting for a watch may be cut in three operations and without any chance of making a mistake after the jeweling tool has been set.

The invention consists in the construction, combination and arrangement of devices, hereinafter described and claimed.

In the accompanying drawings;

Figure 1 is a plan, on an enlarged scale, of a watchmakers jeweling tool constructed in accordance withmy invention.

Fig. 2 is a longitudinal sectional view of the same.

Figs. 3 and 4 are transverse sectional views of the same on the lines aa and 6-?) respectively of Fig. 1.

The body of my improved watchmakers jeweling tool is of oblong rectangular form and is here shown as comprising a pair of arms 2 connected together, in spaced relation, and parallel with each other, by a cross bar 3 at their outer ends and which is here shown as secured thereto by screws 4. This cross bar is provided on one side, at the center, with a fixed flange or jaw 5. A block 6 is rigidly secured between the arms 2 at a point a suitable distance from the outer end or cross bar 3 by screws 7. A block 8 is arranged for movement toward and-from the bar 3 and in the space between the arms 2 and is operated by a screw 9 which is journaled in the block 6, has threaded engagement with a bore in the movable block 8 and is provided with a milled operating wheel 10 arranged in the space between the blocks 6 and 8, one side of the said wheel being engaged in a recess 11 in one of the arms 2. A jaw 12 is secured on the movable block 8 by screws 13 and is movable, by. said block 8, and the screw shaft 9, toward and from the fixed jaw 5.

A block 14 is arranged between the arms 2, extends to one of the ends of the body and is provided with a tapered shank 15 which is adapted to fit the tail stock of the lathe Specification of Letters Patent. Patented June 12, 1917.

Serial No. 144,050.

in connection with which my jeweling tool is used. The block 14 is movable laterally in the space between the arms 2 of the body and is mounted on a pair of transversely arranged shafts 16 which pass through transverse bores in said block 14, the ends of said shafts being suitably secured in the arms 2. A screw 17 is'provided for adjusting the block 14, is swivelly mounted in one of the arms 2, has threaded engagement with a transverse bore in the block 14 and is provided at its outer end with knurled head 18 whereby it may be readily turned by the thumb and forefinger to effect the desired adjustment of the block 14 in the space between the arms 2. This block 14 is provided on one side, near its front end, with a flange 19 that extends outwardly therefrom and forms a jaw.

Said jaw '19 is movable in an L-shaped slot 20 in a plate 21 which extends across the arms 2 and the block 14 and is adjustably secured on said arms by means of screws 22, 23 which are respectively arranged in slots 24, 25 with which said plate is provided. The screw 23 has an enlarged knurled head 26 by means of which it may be readily turned. A gage wire 27 extends across the slot 20 at the point where the arms 28 enters the enlarged rectangular body 29 of said slot. This gage wire is spaced from the block 14 a distance nearly equal to the thickness of the plate 21, said gage wire having its ends secured in'slits in the outer surface of said plate 21.

On the outer end of the body 1 is a chuck 30 which is provided with a thumb screw 31 and which holds a bit 32 that has two cutting edges 33, 34.

The operation of my improved jeweling tool is as follows: With a tool 35 which has at one end a thin strip 36, a jewel is picked up, this being done by moistening the thin strip by applying it to the thumb, and then applying the moistened strip to the jewel, and causing the latter to stick to the strip. The jewel and the strip are then placed vertically between the gage jaws 5, 12 and said jaws are closed on the strip and jewel, by moving the block 8 by means of the screw 9 and wheel 10. The jaw 12 is moved until the jewel and strip are tightly clamped, thus setting the gage formed by the jaws 5 and 12 ready for use. The jewel is then picked up with a pair of tweezers and placed flat on the block 14 in the enlarged portion 29 of the slot 20 and between the jaw 19 and the L-arm 28 of said slot. The plate 21 is then adjusted, after loosening the screws 22, 23 until the side of the slot pushes the jewel up to the jaw 19. The thumb screw 23 is then tightened, thus securing the plate 21 in adjusted position. 'lVith the tweezers the jewel is then pushed to the right, its position being observed by the use of a double lens. The screw 17 is then-turned'to the right, by means of its knurled head 18 until the jewel has been backed by the jaw l9=half way under the gage wire 27. The jewel is then removed and the setting stock is then put in the chuck in the lathe. The jeweling tool is then run up to the setting, until the double edged bit 32 touches the same. The tail stock is then fastened by the'liner on the side and while the lathe is running at high speed the knurled wheel 10 is turned to the right as far as practicable. The thumb screw ,18 is then turned tothe left as far as practicable, the seat being thus cut toiboth the required depth and diameter. The

jeweling tool is then pulled out of the setting.

and the screw 18 turned to the right until it opens the tool to the required extent and the bezel for the jewel is then out.

My improved jeweling tool is simple in construction and enables all watch jewels to be readily set, without reference to their varying sizes.

Having thus described my invention I claim 1. A Watch makersjeweling tool having a tached to a chuck, means to adjust the last named block, a plate extending across the body and the last named block and adjustable transversely of said body and block, said plate having an L-slot in the larger por tion of which the jaw of said last named body is arranged, and a gage wire extending across the inner end of the L-arm of said slot and spaced from said last named block.

2. A watch makers jeweling tool comprising a body having a slot nearitsouter end and a second slot extending at its inner end, a jaw at the outer end and on one side of the body, a chuck at said end of the body having a double edged bit, a block mounted for movement in the first named slot of the body and having a jaw to move therewith toward and from the first named jaw, a screw shaft to operate said block and having an operating wheel, a second block mounted for transverse movement in the second slot of the body, provided at its in ner end with a shank adapted to be engaged by a lathe chuck,said second block also having a jaw on one side near its outer end, a screw for adjusting said second block in the second slot and-thereby relatively moving the body transversely with respect to said second block, and a plate extending across the body and said second block, adjustable transversely thereof, provided with an L- slot, in the larger portion of which said jaw of the second block'is arranged, said plate being further provided with a'gage wire-extending across the inner end of the L-arm. of

its slot and spaced from the said second block.

In testimony whereof I affix my signature in presence of two witnesses.

ZALA RIDDLE.

Witnesses: I

D. 'W. KILLAN, "EpDu Bose.

Copies of this patent may-be obtained for five cents each, by addressingthe Commissioner, of Patents,

I 'Washington, D. G. 

